Nut-lock



' 1. 1. BENTZ.

NUT L APPLICATION FILED .17. 1918.

1,369,002. Patented Feb. 22,1921.

INVENTOR Jo'lm J 58215 BY arm.

ATTORNEY 4 UNITED sTATEs JOHN J. BENTZ, OF NEW YORK, N. Y., ASSIGNOR T0GEORGE BEN 'TZ, OF NEW YORK, N, Y.

PATENT OFFICE.

NUT-LOCK.

I Specification of Letters Patent. Patented Feb, 22, 1921.

Applicationfiled April 17, 1918. Serial No. 229,194.

To all whom it may concern:

Be it known that I, JOHN J. BENTZ, a citizen of the United States,residin at Bronx, county of Bronx, and State of ew York, have inventedcertain new and useful Improvements in Nut-Locks, of which the followingis a specification.

This invention relates to means for securing nuts with relation to theirbolts, so that the same may not become loosened.

The principal object of the invention is to provide means cooperativewith the nuts and bolts, by which the nuts are prevented from movementwhen set in adjustment.

A further object is to provide a securing device the ends of'which areso formed as to engage respectively with the bolts and nuts, all ofseveral parts being of simple construction and readily manufactured.

These and other like'objects are attained by the novel construction andcombination of parts hereinafter described and shown in the accompanyingdrawing, forming a material part of this disclosure, and in which Figure1 is a side'elevational view, partly in section showing a bolt and nutmade in accordance with the invention.

Fig. 2 is a top plan view of the same.

In the drawing 10 indicates the shank or body of the bolt which on oneend is provided with the customary head 11 while its opposite end 12 isscrew-threaded as usual.

As shown, the screw-threaded portion 12 is provided with alongitudinally extending slot 16 passing transversely across theconvolutions of the thread, the slot being adapted to contain the bodyof a key 17 The slot 16 has formed with it a plurality of lateral,inwardly extendingrecesses 22 receivable of the bent end 18 of the key17 the upper end of which is formed intoan outwardly extending element23, terminating in a downturned hooked portion 24, en gageable withinany of a plurality of openings 25 formed in the top'of the nut 26, whilea lug 28 extends outwardly and downwardly from the key 17 below the bentend 18. n

It will be clear that the lug 28 can be engaged by a bar or the like forspringing the key sufiiciently out of the slot 16 to permit the bent end18 to clear or to be retracted from any of the several recesses 22. Thelongitudlnal slot 16 is deep enough to accommodate the key 17 entirely,and a groove 21 in the nut 26 allows a certain play of the key 17 whenthe bent end 18 of the same is sprung out of the recesses 22.

In operat on, the key 17 is placed into the slot 16 with its bent end 18engaging any of the recesses 22, then the nut is screwed home and theupper end of the key is then bent by a suitable tool to engage any ofthe openlugs 25. When it is desired to release the nut, the upper bentend of the key is and a plurality of inwardly extending recesses, a nutthreaded on the shank, and haying a groove in its body, and a'pluralityof openings formed in its top, and a ke adapted to be received in thelongitudina slot of said shank, outwardly extending element at the uppeiend of said key, terminating in a downturned hooked portion adapted toengage in any of said plurality of'openings in said nut, a bent end atthe lower end of said key, adapted to engage in any of said inwardlyextending recesses, said hooked portion allowing a springing of the keysufficiently to permit a retraction of said hooked portion from theopening in said nut by a tool, a lug extending outwardly and Vdownwardly from the lower bent end of said key, adapted to be engaged bya tool for springing said bent end of the key out of one of the recessesin said shank, the groove in said nut permlttlng the key to be sprungout of said recesses when the nut is on the shank.

In testimony whereof I have afiixed my signature.

' V JOHNJ. BENTZ;

